I just recently noticed that the chassis I used is roughly the same dimensions of the Pontiac Fiero which has become populuar with KitCar builders.. while it is in no way a Fiero. To measure, I used an engineering tape for the dimensions. Hadn't been too concerned about the offset since the 14x6's were there originally.

It's about 13ft long.. 160.7" I calculated.. about 2,464lb base weight, 2,735lb (took it to a tonnage scale to weigh it) as fully loaded, uses mounting for a 5spd Manual gearbox on a 4cyl or 6cyl.